diff --git a/src/caoscrawler/identifiable_adapters.py b/src/caoscrawler/identifiable_adapters.py
index 43d4eeafde79a513450c7a3385d6c3b04ad4ea48..b1accd25a35b361472649095b20da488b3d8e2d8 100644
--- a/src/caoscrawler/identifiable_adapters.py
+++ b/src/caoscrawler/identifiable_adapters.py
@@ -312,9 +312,10 @@ startswith: bool, optional
                     raise MissingReferencingEntityError(
                         f"Could not find referencing entities of type(s): {prop.value}\n"
                         f"for registered identifiable:\n{se.registered_identifiable}\n"
-                        f"There were {len(identifiable_backrefs)
-                                      } referencing entities to choose from.\n"
-                        f"This error can also occur in case of merge conflicts in the referencing entities."
+                        f"There were {len(identifiable_backrefs)} referencing entities to "
+                        "choose from.\n"
+                        f"This error can also occur in case of merge conflicts in the referencing"
+                        " entities."
                     )
                 elif len([e.id for e in identifiable_backrefs if el.id is None]) > 0:
                     raise RuntimeError(